obscura, Xarifania Klausewitz [W.] & Eibl-Eibesfeldt [I.] 1959:144, Figs. 11-12 [Senckenbergiana Biologica v. 40 (nos 3/4); ref. 2616] Great Nicobar Island, Nicobar Islands, Indian Ocean, depth 15 meters. Holotype (unique): SMF 4634. •Valid as Heteroconger obscurus (Klausewitz & Eibl-Eibesfeldt 1959) -- (Smith 1989:485 [ref. 13285], Castle & Randall 1999:23 [ref. 24042], Allen & Erdmann 2012:117 [ref. 31980], Allen et al. 2020:15 [ref. 37319], Allen & Erdmann 2024:129 [ref. 40796]). Current status: Valid as Heteroconger obscurus (Klausewitz & Eibl-Eibesfeldt 1959). Congridae: Heterocongrinae. Distribution: Northeastern Indian Ocean: Nicobar Islands (India). Habitat: marine.